38640940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{449}}^1$

素因数の和:802

約数の個数: 48

約数和(自身を含む): 87847200

約数和(自身を除く): 49206260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 331, 449, 662, 898, 1324, 1655, 1796, 2245, 3310, 4303, 4490, 5837, 6620, 8606, 8980, 11674, 17212, 21515, 23348, 29185, 43030, 58370, 86060, 116740, 148619, 297238, 594476, 743095, 1486190, 1932047, 2972380, 3864094, 7728188, 9660235, 19320470, 38640940]

約数ペア:

[(1, 38640940), (2, 19320470), (4, 9660235), (5, 7728188), (10, 3864094), (13, 2972380), (20, 1932047), (26, 1486190), (52, 743095), (65, 594476), (130, 297238), (260, 148619), (331, 116740), (449, 86060), (662, 58370), (898, 43030), (1324, 29185), (1655, 23348), (1796, 21515), (2245, 17212), (3310, 11674), (4303, 8980), (4490, 8606), (5837, 6620)]